梯形演算法 的英文怎麼說

中文拼音 [tīxíngyǎnsuànfǎ]
梯形演算法 英文
trapezoidal algorithm
  • 梯 : Ⅰ名詞1 （梯子; 樓梯） ladder; stairs; steps; staircase 2 （姓氏） a surname Ⅱ形容詞（形狀像樓梯的...
  • 演 : 動詞1 （演變; 演化） develop; evolve 2 （發揮） deduce; elaborate 3 （依照程式練習或計算） drill;...
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  1. Compared with the classical bp algorithm, robust adaptive bp algorithm possesses some advantages as following : ( 1 ) increasing the accuracy of the network training by means of using both the relative and absolute residual to adjust the weight values ; ( 2 ) improve the robustness and the network convergence rate through combining with the robust statistic technique by way of judging the values of the samples " relative residual to establish the energy function so that can suppress the effect on network training because of the samples with high noise disturbances ; ( 3 ) prevent entrapping into the local minima area and obtain the global optimal result owing to setting the learning rate to be the function of the errors and the error gradients when network is trained. the learning rate of the weights update change with the error values of the network adaptively so that can easily get rid of the disadvantage of the classical bp algorithm that is liable to entrap into the local minima areas

    與基本bp演算法相比，本文提出的魯棒自適應bp演算法具有以下優點： （ 1 ）與魯棒統計技術相結合，通過訓練樣本相對偏差的大小，確定不同訓練樣本對能量函數的貢獻，來抑制含高噪聲干擾樣本對網路訓練的不良影響，從而增強訓練的魯棒性，提高網路訓練的收斂速度； （ 2 ）採用相對偏差和絕對偏差兩種偏差形式對權值進行調整，提高了網路的訓練精度； （ 3 ）在採用梯度下降演算法對權值進行調整的基礎上，通過將學習速率設為訓練誤差及誤差梯度的特殊函數，使學習速率依賴于網路訓練時誤差瞬時的變化而自適應的改變，從而可以克服基本bp演算法容易陷入局部極小區域的弊端，使訓練過程能夠很快的「跳出」局部極小區域而達到全局最優。
  2. In this paper, the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image, the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter, the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape, perimeter, area, diameter, complexlity, longest feret diameter, shortest feret diameter etc, are extracted. this technique is applied in measurement of pearl powder ' s particle size

    本文根據粒度圖像的特點，採用非線性對比度增強處理改善顆粒顯微圖像的對比度；對多種閾值分割方法進行比較，分析了它們的性能和用於粒度圖像的適用性，在此基礎上提出了一種基於梯度圖像的動態閾值分割方法；對獲取的顆粒二值圖像進行形態濾波和空洞填充，設計了識別演算法去除凝聚體；對重疊不太嚴重的粘結顆粒採用了兩種基於數學形態學的分割演算法；提取了周長、面積、粒徑、復雜度、最長feret徑、最短feret徑等大小和形狀特徵參數，對珍珠粉等粉體粒度進行了測量。
  3. The numerical algorithm of solving the adjoint equations for different design cases have been developed by using finite volume methodology which is usually used to solve the flow governed equation. it includes the some important aspects, such as flux formulation, wall and far - field boundary treatment methodology, dissipative term formulation, etc. after the solution of the adjoint equations is obtained, the derivatives of the cost function with respect to all the design variables can be evaluated with the same operation. this can yields a significant saving over the other gradient - based techniques when there are many design variables

    （ 3 ）進行了應用控制理論和三維歐拉方程的機翼氣動反設計研究，以及有升力約束情形下機翼跨音速減阻問題研究，分別推導了相應的共軛方程及邊界條件數學表達形式，研究與發展了三維共軛方程的有限體積數值求解方法，及相應梯度公式的數值求解方法，通過對計算網格生成、流場計算、共軛方程數值求解、梯度求解和優化演算法等多方面的有效結合，成功發展了三維機翼的氣動反設計和跨音速減阻優化設計程序，成功地進行了多個設計算例研究。
  4. In this thesis, some key issues of the vr technique are systematically investigated. firstly, for the image filters and image interpolation between slices, a integrated interpolation algorithm is presented based on the contour shape and correspondence matching, which keeps the shapes and grays information the objects of interest. secondly, the fidelity of effect of the vr for medical images is studied, and a continuous - gradient - based method for transparent volume rendering is proposed, which vivifies the results of volume rendering

    首先，研究了醫學斷層圖像數據的濾波及層間插值技術，提出了一種基於輪廓形變和對應點匹配相結合的混合插值演算法，在實現圖像層間插值的同時保持了目標的輪廓形狀與灰度信息；其次，對醫學影像容積重建效果的逼真度進行了研究，提出了一種基於連續梯度轉換函數的互動式透明體繪制方法，使重建效果更加生動、真實。
  5. This article details the arrangement relationship of independence, order, deflection order and the waterfall arrangement ways according to path number and running time, with the stress on the " trapezoid " arithmetic of batch process in parallel computer

    摘要介紹了含有獨立、順序、有偏序關系的批作業的梳理，以及批作業按作業序列路徑數、運行時間長短排序的瀑布式方法，重點講述了并行機批作業執行時的「梯形」演算法。
  6. This dissertation is focused on the study of adaptive digital beam forming ( dbf ), two - dim spectrum estimation and the determination of the highness of the object. main work include : 1 a method of adaptive dbf in received antenna array

    本文圍繞著自適應接收波束形成、時-空二維譜估計和對目標高度判定等方面進行研究，主要研究工作包括以下幾個方面： 1討論了在接收陣列天線中，自適應數字波束形成（ dbf ）的方法，引入了采樣梯度矩陣演算法。
  7. The purpose of this dissertation is to study the lagrangian method and conservative rezonning algorithm. finite volume scheme is used for lagrangian equations of hydrodynamics. because of the pressure gradients " influence upon velocities and energy, computational scheme is proposed for momentum equation on two control volumes in order to suspend the time when the mesh becomes distorted

    本文的目的是研究lagrange方法及重映演算法，主要內容可分為以下幾個方面：首先從積分形式的二維lagrange流體力學方程組出發，用有限體積格式進行計算，考慮壓力梯度分佈對速度和能量改變的影響，構造了在兩個控制體上的動量方程的計算格式，使得速度的改變受其周圍八個壓力的影響，在一定程度上推遲了網格相交的進程。
  8. Biology, etc. owing to many merits has not yet been used to measure parameters of gratings. the paper researches on the subject in view of current lack of it. the main tasks of the paper include : analyzing ellipsometric characteristics of gratings in detail with vector diffraction theory and ellipsometrics ; devising a reflective quarter wave plate at normal incidence according to some ellipsometric characteristics ; making use of normal simplex algorithm during ellipsometric inversion of gratings parameters, inversing ellipsometric parameters with gaussian noise of different standard deviations to simulate actually measured values with examples of isotropic metallic and anisotropic step gratings and testing that ellipsometry about gratings parameters is feasible with the range of certain precision ; discussing choice of incidence angle at length

    本論文的主要工作包括：結合光柵的矢量衍射理論和薄膜的橢偏理論，詳細分析了光柵的橢偏特性；並且根據一些橢偏特性設計出一款正入射反射型單波長1 4波片；在光柵參數的橢偏反演中，引入正單純形法作為反演演算法，分別以各向同性的正弦形金屬光柵和各向異性的階梯型光柵為例，在標準橢偏值的基礎上加入不同偏差的高斯噪聲來模擬實際的橢偏測量值進行反演，在一定精度范圍內得出滿意的光柵參數，說明光柵參數的橢偏測量是可行的；還就入射角的選取問題進行了一定的探討。
  9. So such kind of diseases can be forecasted through qst. first, the physiological basis of vpt is introduced. then the thesis discusses in detail the psychophysical knowledge of the threshold detecting method, especially the transformed - rule up and down method and forced - choice method

    本文首先介紹了定量振動感覺測試系統的生理學基礎，接著對閾值檢出演算法的心理物理學基礎進行了詳細的敘述，著重介紹了系統採用的變形階梯法同強迫選擇法相結合的演算法。
  10. Rule reasoning, fuzzy decision and information fusion algorithm are merged, and the step fault diagnosis method is accomplished ; for different object, when necessary knowledge is given, a special fault diagnosis system will be automatically produced, and the diagnosis result will be given

    將規則推理、模糊決策、多傳感器信息融合演算法融為一體，形成一階梯式故障推理機制；對不同的診斷對象，只要設置好必要知識模塊，就可自行生成一專用故障診斷系統，並能自動輸出診斷結果。
  11. Shortcut calculation of the depth and bottom width of uniform flow in ladder - shaped open canal

    梯形明渠均勻流水深和底寬的簡捷計演算法
  12. So a lot of researchers have attached importance to optimization computing, and put forward all kinds of algotithms for optimization problems, for instance : simplex algorithm, dynamic programming algorithm, branch - bound algorithm, etc. but these algorithms are all disadvantage and can not be applied to complex nonlinear optimization problems

    為了解決各種優化計算問題，人們提出了各種各樣的優化計算方法，如單純形法、梯度法、動態規劃法、分枝剪界法。這些優化演算法各有各的長處，各有各的適用范圍，也有各自的限制。
  13. Based on the transfer - matrix method, the general expressions of equivalent four - terminal network parameters of varying section torsional horn are derived, the relations between frequency equation and both the rotational velocity amplification and that of the surface tangential velocity of stepped type torsional ultrasonic horn with transitional section of cosine - like type are obtained

    摘要基於傳遞矩陣演算法，推導出了變截面桿扭轉振動時等效四端網路參量的一般表達式，研究了帶類餘弦過渡段階梯形變幅桿扭轉振動頻率方程與角速度放大倍數及外表面切向速度放大倍數等的關系。
  14. Direct formula calculating critical depth for open trapezoidal channel with spherical bed

    弧底梯形明渠臨界水深的直接演算法
  15. Firstly, the principle of phase gradient autofocus and rank one phase estimate and its advanced are detailed. secondly, it proposes an algorithm of fast maximum contrast phase compensation after discussing its similar algorithm fast minimum entropy phase compensation

    討論了經典的相位梯度自聚焦演算法、秩一相位誤差演算法及其改進形式;在討論快速最小熵相位補償演算法的基礎上，提出了對比度最優相位調整演算法，實測數據處理表明了該演算法的有效性。
  16. Different training algorithms, namely levenburg - marquart algorithm and the gradient - based algorithm with an adaptive learning rate and momentum, are compared in this paper. according to the engineering requirement, dimensions of idc can be designed using the trained ann model and ga

    將自適應調整學習率並加入動量因子的梯度下降法和levengurg - marquart訓練演算法的訓練結果做了比較分析，同時引入了性能函數的改進形式。
  17. A new kind of optimal selection cluster algorithm ( osca ) is presented in this paper, and a new hybrid algorithm is obtained by combining osca with least squares method and gradient algorithm. the algorithm can synchronously solve the identification problems of the new fuzzy neural network model ' s structure and parameters

    提出一種新型優選聚類演算法，並將該演算法與最小二乘法和梯度下降法相結合，形成一種新的混合學習演算法。該演算法能同時解決上述新型模糊神經網路模型結構和參數的辨識問題，進一步提高了模型的辨識精度。
  18. A morphology - based thinning algorithm and a stroke extraction algorithm based on improved gradient is presented

    提出了基於圖像形態學的漢字細化演算法及基於改進梯度法的漢字筆畫提取演算法。
  19. It presents the arithmetic that is achieved by postorder traversing binary tree, which is built from aov diagraph, based on investigating the arithmetic of interchanging between the ladder diagram and instruction list, and the interpretation and execution of plc programming language. the whole software is developed in visual c + + ide with mfc and multi - threads mechanism. the software is well constructed and conforms to a standard of iec61131

    在重點研究了編程軟體中梯形圖與指令表程序的轉換演算法以及指令解釋執行的原理和方法的基礎上，提出了由aov有向圖建立二叉樹、並對其進行後序遍歷來實現梯形圖程序與指令表程序轉換的演算法，並給出了演算法在編程軟體中的具體實現。
  20. Detailed analyses the algorithm of weight parameter. introduced the different algorithms of digital beam forming ( dbf ) and direction of arrival ( doa ). based on multi - aircraft tracking telemetry and command system, detailed introduce gradient algorithm pattern which follows the lms error norm

    介紹了數字波束形成的基本原理，詳細介紹了波束形成的權值演算法，研究了數字波束形成以及波達方向確定的各種演算法，結合多飛行器測控系統詳細介紹了在最小均方誤差準則下的梯度演算法模型。
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